Nanoparticles + Uses

• • nanoparticles are very small particles between 1-200nm
• • nanoparticles have a large surface area: volume ratio
• • titanium oxide and zinc oxide nanoparticles are used for sun cream
  • they block the UV rays and provide an invisible layer
• • silver nanoparticles inhibit the growth of microorganisms
  • used in fridges, socks and wound dressing
• gold nanoparticles are used to destroy the tumour cells
• • nanotubes are used to make very strong but light tennis rackets
• • used in face cream and cosmetics
• • early stages of use of nanoparticles so still a lot of unknown factors and potential risks
  • lack of understanding on how they affect health